GUADALAJARA, Mexico – Anna Nordqvist of Sweden and South Korea's So Yeon Ryu each birdied the final hole for a share of the second-round lead with Thailand's Pornanong Phatlum on Friday in the Lorena Ochoa Invitational on the LPGA Tour.

Nordqvist and Ryu shot 5-under 67 to match Phatlum at 9-under 135 at Guadalajara Country Club. Nordqvist and Ryu played in the same group.

"I'm always really happy to play with Anna," Ryu said. "We have so much fun always, so I love it. We pretty much played so well, especially on the back-nine. We hit a really great shot and she made every birdie putt. I was really excited to see her, to see how she is playing."

Nordqvist is winless on the tour since the 2009 LPGA Tour Championship.

"We're only halfway through and, obviously, the best golfers in the world are here so you can't really think about winning or leading the tournament right know," Nordqvist said. "We have two more days, so you have to try to play your game and put low scores out there."

"It's been great. I love Mexico," Piller said. "Most people don't know this, but my maiden name is Mendoza. I don't speak much Spanish, but I love the food, love the people and it's just a great tournament. I never got to play with Lorena, but she's been a huge inspiration."